for this to be (5) ............... into biodiesel.

her with their used cooking oil. She then arranges

lucky (14) ............... to catch sight of a tiger, then they take a picture and upload it to the website. The website is gradually collecting a large quantity of photos, (15) ............... enables researchers to identify how the animals move from one place to (16) ............... The hope is that an improved understanding of how tigers live will help us to ensure their survival.

recognises them by the pattern of their stripes. If someone is

mentions some advice Hirano has been given?

Young people help society Young people tend to spend most of their out-of-school hours (0)............... with homework and other school commitments. These keep them so busy that they have no time to (1) ............... for other major projects. But there are some remarkable exceptions to this (2) ............... . Some use any free time they have to (3) ............... themselves